The section marked I indicates the start of the trip. Section II represents
the increase in speed; speed is the slope of the line. Section III is the
standstill in traffic. Section IV denotes the continuation at the faster
speed, and section V is the stop at point B.25 . C
Draw the parallelogram with the height shown.
The triangle created inside the parallelogram is an isosceles triangle; two
of the sides are congruent. In a 45–45–90 right triangle, if the congruent
sides are x units long, then the hypotenuse is The hypotenuse is
the shorter side of the parallelogram. It is given that the hypotenuse is
2.83; therefore, the height is The area of a parallelogram is
base times the height, so the area = 8.83 × 2 ≈ 17.67, to the nearest
hundredth.